Average Bench: 121% (146th of 1011)

Based on 7,948 user benchmarks.  Models: NVMe PM951 NVMe SAMSU, PM951 NVMe SAMSUNG 256GB

Outstanding average bench

The Samsung PM951 NVMe PCIe M.2 256GB averaged 21.1% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung PM951 NVMe PCIe M.2 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 344MB/s
Avg. 4K-64Thread Read Speed 790MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the Samsung PM951 NVMe PCIe M.2 256GB is 64.4%. This is a particularly wide range which indicates that the Samsung PM951 NVMe PCIe M.2 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 229MB/s
Avg. Sequential Write Speed 260MB/s
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Average Bench

(Based on 7,948 samples)
Min Avg Max
626 Read 930 1,042
113 Write 260 308
167 Mixed 286 348
80.9 SusWrite 229 299
93.1% 426 MB/s
Min Avg Max
17.7 4K Read 39.6 41.8
42.3 4K Write 110 156
15.8 4K Mixed 31.5 40
159% 60.4 MB/s
Min Avg Max
162 DQ Read 790 988
109 DQ Write 259 313
95.7 DQ Mixed 344 425
301% 464 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
101GB free
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 295 294 294 295 294 293 MB/s
Read 1,026
Write 299
Mixed 322
SusWrite 294
106% 485 MB/s
4K Read 41.5
4K Write 158
4K Mixed 39.1
197% 79.7 MB/s
DQ Read 989
DQ Write 304
DQ Mixed 411
364% 568 MB/s
37GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 257 230 219 202 184 167 MB/s
Read 929
Write 280
Mixed 301
SusWrite 210
94% 430 MB/s
4K Read 36.4
4K Write 119
4K Mixed 37
165% 64 MB/s
DQ Read 985
DQ Write 268
DQ Mixed 385
346% 546 MB/s
18GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 173 121 103 110 106 100 MB/s
Read 1,011
Write 256
Mixed 281
SusWrite 119
90% 416 MB/s
4K Read 34.5
4K Write 107
4K Mixed 36.7
156% 59.4 MB/s
DQ Read 973
DQ Write 242
DQ Mixed 361
329% 525 MB/s
23GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 151 123 99 87 92 88 MB/s
Read 986
Write 269
Mixed 312
SusWrite 107
91% 419 MB/s
4K Read 37.6
4K Write 118
4K Mixed 31.5
160% 62.5 MB/s
DQ Read 894
DQ Write 254
DQ Mixed 378
329% 508 MB/s
23GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 268 256 165 83 85 86 MB/s
Read 937
Write 251
Mixed 285
SusWrite 157
89% 407 MB/s
4K Read 31.7
4K Write 102
4K Mixed 34.5
146% 55.9 MB/s
DQ Read 815
DQ Write 227
DQ Mixed 330
293% 457 MB/s
40GB free (System drive)
Firmware: BXV76D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 168 149 143 151 130 121 MB/s
Read 619
Write 171
Mixed 268
SusWrite 144
66% 300 MB/s
4K Read 37.6
4K Write 121
4K Mixed 35.1
166% 64.6 MB/s
DQ Read 957
DQ Write 217
DQ Mixed 341
314% 505 MB/s
207GB free (System drive)
Firmware: 7D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 294 291 292 294 293 292 MB/s
Read 668
Write 303
Mixed 297
SusWrite 293
86% 390 MB/s
4K Read 20
4K Write 61.9
4K Mixed 26.3
97% 36.1 MB/s
DQ Read 947
DQ Write 305
DQ Mixed 410
359% 554 MB/s
7,948 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 19,849,350 SSDs tested.

Typical PM951 NVMe PCIe M.2 256GB Builds (Compare 4,192 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 14%
Tree trunk
Desktop
Desktop 58%
Gunboat
Workstation
Workstation 39%
Jet ski

System: Alienware 17 R3

EDIT WITH CUSTOM PC BUILDER

Popular PM951 NVMe PCIe M.2 256GB systems:

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Solid State Drive Rankings (Price vs Performance) December 2019 SSD Rankings.

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]

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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.

 Comments

Added n/a ago.

Excellent

2 years ago.

Fast as heck...at half speed I might add!


Your
opinion?
1011 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-9400F $145Nvidia GTX 1660S (Super) $244Crucial MX500 250GB $39
Intel Core i5-9600K $200Nvidia RTX 2060 $324Samsung 850 Evo 120GB $150
Intel Core i7-9700K $360AMD RX 590 $180Samsung 860 Evo 250GB $54
HDDRAMUSB
Seagate Barracuda 1TB (2016) $32Corsair Vengeance LPX DDR4 3200 C16 2x8GB $76SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3000 C15 2x8GB $58SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $613SanDisk Extreme 16GB $24
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